Wikipedia on Sun | MySQL Servers

Wikipedia receives between 25,000 and 60,000 page requests per
second, depending on the time of day. Wikimedia needed to update its
infrastructure to handle this huge volume of traffic and ensure that
its systems were reliable, highly available, and easily scalable. It
also wanted to expand its upload file limit from 20 MB to 100 MB to
accommodate rich media (audio and video) content, but before it could
do that it needed to expand its storage capacity.

It is great to see that how the most important non-profit content provider on the web grows and it is great to be part of that growth.

Wikipedia should be the subject of extensive studies in various fields of sociology, economics and information systems: social knowledge, open-source, open-content, markets, information economics and open-scoeity.